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<?php
# CATS Online Registration System
# Copyright (C) 2004 Adam Beaumont, Thomas Cort, Patrick McLean, Scott Stoddard
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# This file contains a PHP SMTP client
class cats_smtp {
var $connection;
var $host;
var $port;
function cats_smtp() {
global $smtp_host;
global $smtp_port;
if (!isset($smtp_host)) {
$this->host = "localhost"; # try the localhost
} else {
$this->host = $smtp_host;
}
if (!isset($smtp_port)) {
$this->port = 25; # use default smtp port
} else {
$this->port = $smtp_port;
}
$this->connection = 0;
}
function connect() {
$this->connection = fsockopen($this->host,$this->port);
if (!$this->connection) {
$r = new return_result(false);
$r->add_message("No Connection\n");
return $r;
}
$result = $this->get_sock_data();
if (strncmp($result,"220",3) != 0) {
$r = new return_result(false);
$r->add_message("Error connecting\n$result\n");
return $r;
}
return new return_result(true);
}
function disconnect() {
fclose($this->connection);
$this->connection = 0;
}
# read as much data from the socket as possible
function get_sock_data() {
$data = "";
while($str = fgets($this->connection,515)) {
$data .= $str;
if(substr($str,3,1) == " ") {
break;
}
}
return $data;
}
# write data to a socket and append "\r\n"
function put_sock_data($data) {
fwrite($this->connection,$data . "\r\n");
}
# SMTP Commands
function cmd_helo() {
$this->put_sock_data("ehlo " . $this->host);
$result = $this->get_sock_data();
if (strncmp($result,"250",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with HELO command\n$result\n");
return $r;
}
return new return_result(true);
}
function cmd_auth() {
global $smtp_user, $smtp_pass;
$coded_pass = base64_encode("$smtp_user\0$smtp_user\0$smtp_pass");
$this->put_sock_data("AUTH PLAIN " . $coded_pass);
$result = $this->get_sock_data();
if (strncmp($result,"235",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with AUTH command\n$result\n");
return $r;
}
return new return_result(true);
}
function cmd_quit() {
$this->put_sock_data("quit");
$result = $this->get_sock_data();
if (strncmp($result,"221",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with QUIT command\n$result\n");
return $r;
}
return new return_result(true);
}
function cmd_mail_from($addr) {
$this->put_sock_data("mail from: $addr");
$result = $this->get_sock_data();
if (strncmp($result,"250",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with MAIL FROM: $addr command\n$result\n");
return $r;
}
return new return_result(true);
}
function cmd_rcpt_to($addr) {
$this->put_sock_data("rcpt to: $addr");
$result = $this->get_sock_data();
if (strncmp($result,"250",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with RCPT TO: $addr command\n$result\n");
return $r;
}
return new return_result(true);
}
function cmd_data($from,$to,$subject,$data) {
$this->put_sock_data("DATA");
$result = $this->get_sock_data();
if (strncmp($result,"354",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with DATA command\n$result\n");
return $r;
}
$this->put_sock_data("From: $from");
$this->put_sock_data("To: $to");
$this->put_sock_data("Subject: $subject");
$this->put_sock_data($data);
$this->put_sock_data(".");
$result = $this->get_sock_data();
if (strncmp($result,"250",3) != 0) {
$r = new return_result(false);
$r->add_message("Error with DATA command\n$result\n");
return $r;
}
return new return_result(true);
}
}
?>
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